Follows one day's card takings at a single store through every system it passes and every hand it touches, from the moment the customer pays to the moment an auditor could ask about it. Deliberately the happy path: almost nothing goes wrong, and almost no human is involved.
A customer pays 47.20 by card at Northfield Retail Store 214 on 3 March, one of 1,847 transactions at that store that day.
Day 0 (3 March) through close day 4 (4 April)